Coin-freed lock for caretakers.



s SHEETS-fuma 1.

Patented Feb.1,1-910.

P. KoPAL. y GOIN FREED LOGK FOR GABETAKERS.

APPLICATION FILED JUNE 3, 1909. 948,295.

v P. KOPAL. GOIN FREED LOOK FOP. GABETAKBRS.

APPLIUATION FILED JUNE 3, 1909.

Patented Feb. 1, 1910.

a SHEETS-SHEET 2.

' P. KoPAL. GOIN FREED LOCK FOR GARBTAKERS. APPLICATION FILED JUNE 3,1909.

948,295. Patented Feb.1,191o.

3 SHEETS-SHEET 3.

PETER KOPAL, OF PRAGUE-KNIGL, AUSTRIA-HUNGARY.

COIN-FREEI) LOCK FOR. CARETAKERS.

Specification of Letters Patent.

Patented Feb. 1, 1910.

Application filed June 3, 1909. Serial No. 499,990.

To all whom it may concern:

Be it known that I, PETER KOPAL, a subject of the Emperor ofAustria-Hungary, residing at Prague-Knigl, Weinberge, in the Austro-Hungarian Empire, have invented certain new and useful Improvements inCoin-Freed Locks for Caretakers; and I do hereby declare the followingto be a full, clear, and eXact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention has reference to caretakers for the safe custody of hats,coats, umbrellas, walking-sticks, and other property temporarily left;and it relates in particular to a coin-freed lock, having two parallelrotative disks, of which the one acts as a boltplate, while the otherconstitutes a ratchetwheel. These disks operate in conjunction withvarious auxiliary mechanisms, and locking and unlocking depends upon thepositions they occupy.

The invention is illustrated in the accompanying drawings, in which-Figure 1 is a front elevation, Fig. 2 a side elevation, and Fig. 3 ahorizontal section of the keeper. Fig. 4 is an elevation of thelock-case with cover-plate removed. Fig. 5 shows a side and an endelevation of the key. Fig. 6 is an elevation of the ratchet wheel. Fig.7 is a section on the line e-.e of Fig. 6. Fig. 8 shows an elevation anda plan of the latch. Fig. 9 shows an elevation and a plan of thetumbler. Fig. 10 shows an elevation of the bolt-plate. Fig. 11 is asection on the line g/l-yl of Fig. 10. Fig. 12 is a section on the liney-g/ of Fig. 10. Fig. 13 is an elevation of the cover-plate. Figs. 14-17show the lock (with cover-plate removed) with the parts in threesuccessive positions. Fig. 18 is a section on the line. g-g of Fig. 16.Fig. 19 is an elevation of the caretaker door, drawn to a smaller scale.

I will first proceed to describe the principal parts of the new locksingly.

The keeper y' (Figs. 1 3) is of angular shape and in addition to theslot 17 for the bolt-plate, it is provided with an aperture 16 in bothflanges, serving to receive the latch.

The side-plate of the case a (Fig. 4) is furnished withV a rotativesafety-disk Z) adapted to receive the stem of the key 71 (Fig. 5) andpresenting two apertures 1,

2 into which pins 11, 21 on the key z' it. The

periphery of the disk b is removed at one part so as to present a fiatsurface, against which there bears a pivoted spring-actuated detent c,whereby the disk b is prevented from turning. The detent is notched at71 for a purpose to be hereinafter described. The lock-case a alsopresents a pin 7, acting as a stop for the pivotal segment 3 of thebolt-plate cZ (Fig. 10).

e is a pivot serving as an axis for the tumbler g (Fig. 9) and the latchh (Fig. 8).

151 is an aperture on the selvage of the case a., to receive the end ofthe latch 71,.

The boss of the wheel c (Figs. 6 and 7) presents four ratchet-teeth g.On the periphery of the wheel are two pairs of grooves or recesses 10and 11, while the center is perforated to receive the key z' (Fig. 5).rThe wheel has also two apertures or windows n.

The latch 7L. (Fig. 8) is spring-actuated and presents a hook 14. Thetumbler g (Fig. 9) is likewise spring-actuated and has a laterallyprotruding pin 12 and a hook 13.

The surface of the bolt-plate cZ (Figs. 10, 11 and 12) is such that acoin-channel p is presented. At 1^ a portion of the periphery isremoved. To the back of the plate there is pivoted a segment 3 fromwhich there projects a pin 5, engaging in a slot in the plate d, abovewhose face it slightly protrudes. In the interior of the segment is aspring which bears against a pin 6 on the plate CZ and presses thesegment and pin 5 downward. The pin 4 serves as a stop for the plate Zand also as catch for the latch it, as will be hereinafter described.The office of the in 7 is to depress the detent c of the case a Fig. 4).The periphery of the plate Z is notched at 8 to receive the pin 12 ofthe tumbler g (Fig. 9).

f is a countersunk spring-actuated pawl pivoted to the plate CZ andadapted to engage between the teeth g of the wheel e (Figs. 6 and 7).The plate (Z has a hole for the key z', the recess Z for the key bitbeing lowermost, above the fiat portion r of the periphery of the plate.

,7c (Fig. 13) is a cover-plate, furnished with a keyhole having a recessZ1 for the bit; it has also a round slot m to receive the coin.

The various parts of the lock are assembled in the following manner.First the bolt-plate cZ is set in the case a, with its central apertureon the boss of the safety-disk ZJ, which acts as pivot, the fiat portionr of the plate being below, while the number (in the present case 10 7),indicating the value ot the coin to be dropped in the slot, is above.The wheel e is then placed upon the plate (Z, with its toothed boss inthe recess in the former, the pawl f being snapped between the teeth g,thus preventing the wheel e from turning toward the left. The tumbler gand latch l1, are now set upon the pivot e and the cover-plate 7c thenscrewed on (Fig. 18).

The lock operates as follows. Suppose the door of the caretaker A (Fig.19) to be closed, the various parts of the lock occupying the positionsshown in Fig. 14 and the key z' already inserted in the lock. Since theleft-hand portion of the plate (Z projects into the keeper j the door islocked; the plate Z cannot turn farther toward the left owing to the pin14 bearing against the selvage of the case a. The figure 10 is exhibitedthrough the top window n in. the wheel e. The latter cannot be turned tothe right, owing to the pin 5 of the segment 3 engaging in the one ofits peripheral grooves 10; nor can it be turned to the left, owing tothe pawl f engaging with the toothed wheel g, and owing to the tooth 13of the tumbler g engaging in one of the peripheral grooves 11 of thewheel. The key z' cannot be retracted as the recess o of the wheel e islocated at an angle ot' 45O to the recess Z of the plate CZ. The outerend of the latch 7a reposes in the aperture 16 of the keeper which ithas reached by sliding up the inclined surface of the aperture onclosing of the door. It now a coin is placed in the slot, it will dropdown the channel p between the plate CZ and wheel e. At the same timethe key must be turned toward the right, so that the shoulder of theplate cZ will bear upon the spring-act-uated tumbler g and will lift thetooth B from the groove 11 in the wheel e (Fig. 15). The plate Z andwheel e will thus have advanced through 45 and the pawl f will engagebetween the teeth 9 of the wheel c in substantially horizontal position.Since in this position of the parts the flat part r of the bolt-plate (Zregisters with the selvage of the case a, lying opposite the keeper j,the door can be opened. During the rotation of the parts Z e thesafety-disk Z) will also have turned to the right, the pin 7 of theplate Z having depressed the detent c and snapped into the notch 71(Fig. 15) thus preventing backward rotation of the plate CZ. Thisprevents the lock being opened with a false key or picklock. In thisposition of the parts the tooth 13 orp the tumbler g engages in the onegroove 10 of the wheel e and thus iirmly holds the latter. The latch z,has fallen and its hook 14 grips the pin 4 of the plate CZ, preventingrotation of the latter. Thus neither of the parts Z e can be turned; norcan the key be withdrawn or turned in either direction, since therecesses o and Zlie at an angle of 45 to each other. If, however, thedoor is closed again, the latch ZL will slide up into the aperture 16 ofthe keeper, releasing the pin 4 from the hook 14, so that by turning thekey the plate (Z can be rotated toward the left. Since, however, thetooth 13 of the tumbler g engages in the groove 10 et the wheel e thelatter will not rotate with the plate d. The caretaker is now locked.This position of the parts is shown in Figs. 16 and 18, in which all theinstrumentalities occupy the same position as in Fig. 14, with theexception of the wheel e, which lies with its windows n a horizontal.The recesses Z 0 thus coincide, so that the key can be withdrawn fromthe keyhole. On the lock being opened again with the key z', bothmembers CZ e will be turned toward the right, the parts then occupyingthe positions shown in Fig. 17. On locking the empty caretaker only theplate CZ will be turned toward the left, since the tooth 18 of thetumbler g engages in the groove 11 of the wheel e and prevents itsrotation. The mechanism has now resumed the initial position again andcan only be opened with the aid of a coin, as before (Fig. 14).

The door is provided with a closable 'lass receptacle u, so as to enabledisplay ot the coin o which has been dropped into the slot m.

Having thus described my invention, I declare that what I claim is Acoin-freed lock for caretakers, comprising the followinginstrumentalities, an angular keeper whose corner presents an aperturefor a latch and whose tace presents an aperture for a bolt-plate; a casepresenting a rotative disk having apertures for a key, a spring-actuatednotched detent controlling said disk, and a stop; a circular bolt-platerotatably mounted in the case and having a keyhole, and whose peripherypresents a flat portion and a notch, and whose face presents acoin-channel, a pivoted spring-actuated pawl, a slot, a stop adapted toengage the detent of the case, and a stud adapted to engage the selvage,and whose back presents a pivotal spring-controlled segment engagingsaid stop of the case and having a pin projecting through said slot; arotative disk presenting a keyhole and two windows, and whose boss istoothed and fits into said bolt-plate and is engaged by said pawl of thebolt-plate and whose periphery presents four grooves; a springactuatedlatch pivote-d to the case and presenting a hook adapted to engage saidstud of the bolt-plate, and whose end fits the corner aperture of thekeeper, and which is adapted to be raised by said segment-pin; aspring-actuated tumbler pivoted to the ease and presenting a pin adaptedto engage In testimony whereof I aHX my signature in the perpleral1notch of the loolt-plate, in presence of tWo Witnesses.

and a tooth a aptec to engage in tle peripheral grooves of the disk; acover-plate pre- PETER KOPAL' sentng a coin-slot and a keyhole; and a/Vtnesses: Y

key ttng the said keyholes; all operating ADOLPH FISCHER,

substantially as described. RICHARD MLLER.

